Substituted betaines



Patented June 1, 1937 UNITED STATES suns'n'ru'mn mummies Karl Daimler and Germany,

cal-1mm, Mus-ma.- aaaignors to General Aniline Main, Works. Inc., New York. N. Y., a corporation of 7 Delaware so Drawing. Application April 22, Germany A No. 17,744. In

5 Claims.

betaines of wherein one R stands for an aliphatic radical. with at least 6 carbon atoms and the other R's stand for aliphatic, aliphatic-aromatic and aromatic radicals, may be obtained by reacting tertiary amines with halogen carboxylic acids. As tertiary amines there may be mentioned, for instance: trimethylamine, triethylamine, triethanolamine, trihexylamine, hexyldimethylamine, dodecyldimethylamine, dodecyldibutylamine, dodecylmethyibenzylamine, tetradecylethylaniline, hexadecyldioxethylamine and octadecenyldimethylamine. Instead of these pure amines there may also be used technical mixtures obtainable, for instance, from natural fatty acid mixtures, for instance, from fatty acids of palm nut oil or coco nut oi] or fish oil. As halogen carboxylic acids there may be mentioned monochloracetic acid, beta-chloropropionic acid. beta-chloro-butyric acid, IO-bromostearic acid. The above mentioned carboxylic acids are advantageously caused to react in the form of their salts with the tertiary amines in an aqueous solution.

The products corresponding with the above formula may also be obtained by alkylating at the nitrogen atom amines containing'carboxyl groups. vThus, for instance, dodecylamino acetic acid may be transformed into the betaines of dodecyldimethylamine by treating it with dimethylsulfate or chloromethyl. It is, however,

necessary that the final product contains at the i nitrogen atom at least 1 aliphatic radical of at least 6 carbon atoms.

As betaines of the above general formula there may be mentioned, for instance: the betaine obtainable by reaction of sodium chloracetate with 5 dodecyldimethylamine; the betaine obtainable by reaction of sodium chloracetate with an amine prepared in the following manner: coco nut oil fatty acid or palm nut oil fatty acid is transformed into the corresponding nitrile, the nitrile l) is reduced to form the amine and the amine thus obtained is converted into a tertiary amine; furthermore, the betaine obtainable by reaction of sodium chloracetate with hydroxypropylmethyldodecylamine; the betaine obtainable as 6 follows: hardened fish oil fatty acid of the iodine 1935, Serial [Ill 26, 1934 number 60 is transformed into the corresponding nitrile and the nitrile is reduced in known manner to the amine. This amine is then caused to react with potassium monochloracetate in an aqueous solution and transformed into the betaine by means of dimethylsulfate or chloromethyl; furthermore, the betaine obtainable by reaction of methyl-dodecylbenzylarnine with beta-'chloropropionic acid; the 'betaine obtainable by reaction of trimethylamine with 10 bromo-stearic acid.

The new compounds have a very good solubility in water, a, high stability towards acids and lyes and a remarkable insensitiveness towards electrolytes. They are, furthermore, distinguished by a high stabilitytowards the salts that cause the hardness of water. The products may be used as agents for washing all sorts of textiles and, in view of their good levelling power, as auxiliary agents, for instance, in the dyeingof vat dyestuffs for stripping dyeings, for dissolving dyestuffs. The products may be used either alone or mixed with additions, for instance, inorganic 'salts, bleaching or reducing agents.

The following examples serve to illustrate the invention, but they are not intended to limit it thereto; the parts are by weight unless otherwise stated:

l.-.-94.5 parts of chloracetic acid are finely distributed in 36 parts of water and neutralized with a solution of 40 parts of caustic soda in 36 parts of water, whereupon 213 parts of dodecyldimethylamine is added to this solution, the whole is then heated for some hours at 70 C. to 80 C.

A transparent paste-like mass is obtained which is soluble in water to a clear solution and has the following constitution:

The product may be dried in the usual manner to form a soap-like preparation. The mass may also be liquefied by adding a small quantity of alcohol and a solution is obtained which contains about 35 percent. of active substance. It is very well adapted for being used as liquid hairwash and is fully effective also in sea-water. Instead of the pure dodecyldimethylamine there may also be used an amine prepared as follows: coco nut oil fatty acid is transformed into the nitrile, the nitrile is reduced to the amine and the amine is-converted into the tertiary amine.

15 product obtainable C'lmrammoniumsilkisdyedina-solutionconi 0.

per cent. 01' dystui! o sccordingto 5 German Patent No. 240,000 (calculated Won the 18111;!!! the loads). 1 mm oithe product obtainable according to this above process, core! mandla'ramaoi .Iood

caustiesoda solution oi 88' hydrosumte. Dyeinas oi 1. obtained.

Cottonyarnisdyedinasolutioncontainingper liter0.5percent.oi'thedyestuil eaccording to German Patent No. 408,154 (calculated 5 upon the welohtoithezoodsl,l.5aramaoithe to the above procass, 15 cc. of caustic soda solution of 38' Be. and 2 grams of hydrosumte; An excellent dyeing oi Qood evenness is obtained.

2-257 parts of hydroxypropylmethyldodecyll0 amine, 40m 01 caustic soda and-945 parts of H!!- OH e-O=O 00' mo-nc-mo n I is adapted either alone or mixed with additions. for ce, sodium carbonate, as cleansing agent torwaahingwhite linenloods. V Vlscoeeartiflciaisilkisdyedinasolutloncon- I tainingperliter05por-oent.oithedyestufl 1.265

isehultml'arbstofl'tabellen,

alhline to phenolphthalein. At-00' C. to'i0' 0., partaotdimethylsulfateandzwnartsot 'cauatiosodasolutionoi' about 45'Be.a rerunin, while stirring, and the whole is stirred tor 10 hours atthis Awater-soluhlemass .iaobtainedwhlchhasthet wingwnstitution:

mo I5 ncmo-o 'nio .are

least 8 carbon tor a member oi the group consisting oi aliphatic,

' ind amine I r in: aaent. especially in an alkaline solution, for

textiles soiled with oils and pigments. By dissolving, for instance, 2 Irarns oi the product in lllteroiwateroi' (German) solution is tarv linen and underwear. Wit: the eloodresuit thesoiutionmayalso used :z washingorudewool' containin suintandtor washing piece goods.

We claim: 1. The products 01' the following general i'ormuia: B

a+n-o=o B o for an aliphatic radical with atoms and the other R's stand wherein R c-aromatic or aromatic radicals, which products are distinguished by their cl properties, their stability towards acidsand lyes and towards the salts that cause the hardness of water.

2. The Products of the following general n nomc=b wherein Rstands'tor an alibhatic radical with at least 6 carbon atoms and R1 stands for alkyl. which products are by their cleansin; properties. their stability towards acids and lyes and towards the salts that cause the -oi' water. '3. The product of the stinguish properties, its stability towards'acids and lyea and owtgrrdgthesalts that cause thehardnessoi m v 4. product or the following formula: v mc r mc-nomc I: v which product is dlstinsuished by its cleansing properties. its stability acids and iyes thesaltsthatcausethehardnessot water.

-5.;The-productoi the following seem: formula:

: EsC

n N-omo=o wherein R stands for the hy rocarbo -radical offlshoili'attyaciiwhlchm'oductlsdia- DISCLAIMER 2,082,275.-Karl Daimler and 0m Pam, Frankfort-on-the-Main, Germanyf sun- )STITUTED BETAINES. Patent dated June 1937 Disclaimer filed August 4, 1938, by the assignee, General Aniline Works, Ine

Hereby enters this disclaimer of all compounds comingwithin'the scope of claim 1 with the exception of those in'which the radical R, joining the N. atom-and the -C=O I group, contains less than seven carbon atoms.

[Qfiicial Gazette August-30, 1938.] a

DlSCLAIMER' I 2,082,275.-Karl Daimler and Carl Platz, Frankfort-on-the-Main, Germ any. SUB- STITUTED BE'IAINES. Patent dated June'l, 1937. Disclaimer filed August 4, 1938, by the assignee, General Aniline Works, Inc

Hereby enters this disclaimer of all compounds coming within'the scope of claim I 1 with the exception of those inwhich the radical R, joining the N etomm'id the group, contains less than seven carbon atoms.

[Ofiicial Gazette August-30, 1938.] 

